J156 Smith and Wesson J Frame Model 34 Thumbpiece & Nut Blue Used 22LR Patridge Sight The Model 637 features a

The Model 637 features a visible hammer allowing both single-action and double-action operation

or maintenance

alloy frame

Gifts for gun collectors and Western decor enthusiasts

J156 Smith and Wesson J Frame Model 34 Thumbpiece & Nut Blue Used 22LR Patridge Sight The Model 637 features aPart# J156 Smith and Wesson J Frame Model 34 Thumbpiece & Nut Blue Used 22LR Revolver Pistol Gun Part. Please call or email with any questions! How to determine the model number of your Smith & Wesson Revolver. Swing out the cylinder , check behind the yoke on the frame for a MODEL NUMBER. Model numbers began in 1957 58. So if there is no model number then your revolver may be older than 1957 58. In this case we can possibly still find the part you